It is important to manage expectations. Running GTA 5—even modded versions or ports—is incredibly demanding.
Dolphin is designed specifically for and Wii games. Since GTA V was never released for those consoles, an ISO file for it does not exist for this emulator. ⚠️ Warning on "High Quality" 7z Downloads gta 5 dolphin emulator iso file7z high quality download
Here is the quick breakdown of why that won't work and what you need instead: Emulator Mismatch: Dolphin is designed specifically for It is important to manage expectations
If you see websites offering a "GTA 5 ISO" for Dolphin, be extremely cautious, as these are often scams or malware. Official Ways to Play GTA 5 be extremely cautious